How much will you pay for a Hypervisor on those cores ?
Now that 6 core processors are available from both Intel and AMD, the virtualisation team at Microsoft have done some analysis on how much it will cost to run Hypervisors from Microsoft and VMware on these new machines.
Refer to http://blogs.technet.com/virtualization/archive/2009/06/28/Beware-the-VMware-Core-Tax-and-More.aspx
